Question about 2005 Pontiac G6

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Heater doesnt blow heat and sometimes works but only on high setting

When it does happen to work if i change to lower setting then back to high it wont work, i already replaced the resistor

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  • 937 Answers

This depends on what type of heat it is and what you are heating. If it is your car's heating then you have to wait for the car to warm up before hot air blows out.---------------------------------------------------------------------------------------
digiprog 3

Posted on Jan 10, 2013

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6ya6ya
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Posted on Jan 02, 2017

emissionwiz
  • 75814 Answers

SOURCE: heater blower motor works intermittently

I would replace the blower motor, this sounds like a motor brush problem inside the motor itself.

Posted on Jan 24, 2009

  • 87 Answers

SOURCE: 03 grand prix heater blower only works on setting #5

It needs a blower motor resistor which is located behind the blower motor - this is located on the passanger side underneath the dash board...it is round and black.

Posted on Aug 02, 2009

  • 2 Answers

SOURCE: heater blower motor only works on high

You most likely need to replace the ignition switch. Sounds weird, but check out other posts. It works.

Posted on Aug 27, 2009

  • 3 Answers

SOURCE: A/C and heater only works on high

I had a problem like this on my 1999 grand prix gt. My headlights would cut out on any setting less then high (5), and my re-defroster wouldn't work. After ALOT of research I found out the it is the ignition wiring harness. I went to Advanced auto and they got me that for i think around $100ish. I hope this helps

Posted on Sep 24, 2009

  • 118 Answers

SOURCE: 2003 grand prix blower control only works on 5, no heat.

you got two diff problems or more poss hvac control head, bad blower resister, bad thermostat, low on coolant, or plugged heater core

Posted on Oct 11, 2009

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2 Answers

We had some subzero weather while I was on vacation. My 2004 Jaguar was parked outside for several weeks. We had another very cold, icy day, and heater did not work. Fan works, rear window defroster...


What is happening here is that the faster the heater blows air through the fan, the more it cools the liquid in the heater core, and so heat output is reduced. The root of the problem is either the engine is not warming up enough, or the heater core, and/or heater core lines, are plugged up, not allowing the water to circulate properly in the heater core. Here is what I would try.

1. Top off the radiator and overflow.
2. Is the engine warming up properly? Is your temperature gauge showing normal temperatures? If it is not, then replace the thermostat.
3. If steps 1 and 2 do not solve the problem, get the vehicle in a shop, locate the heater core lines, take them apart and flush out the heater core. Look for blockages in the fittings. Do a flow test on the core. It may be clogged and need to be replaced.

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may have air trapped in it still or thermostat is not working properly..

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Engine overheat and no heat


Maybe your radiator is clogged.

Mar 12, 2017 | 2001 Nissan Sentra

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How do you install a heater core for a1991 Mazda Navajo


remove dash assembly try to back flush first or drain cooling system put water back in add cascade dish washing soap and drive a couple days if heater starts woreking better turn heat on high run engine open drain with a hose nozel on high and a large pan under drain flush all water out with engine running refill system with heat on high and vehicle running if heat still weak remove heater hoses the top should be the return line put a hose about 8 inces long on both out lets run the bottom hose to a high area where it can be suspended put a funnel in upper hose poor clr into hose until it comes out top of lower hose let set for hour and a half then flush out with water into a clear jug flush water vthrough upper hose then if u have air compressor have a 6 inch hose attatched to upper pipe and blow out core into same jug until the jug has clean and clear water refill cooling system and drive if heat doesnt work at first put engine under a load to release residule deposits in heater core and it should start flowing

Apr 01, 2012 | Cars & Trucks

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My ac/heater fan stops blowing then it blows sometimes? The air is still cold just not blowing out. when it does blow it is cold.


replace fan speed resistor block if this only happens on lower fan settings if it happens on high fan speed also, replace blower fan

Jan 20, 2011 | 2001 Isuzu Trooper

1 Answer

Heater comes on when going over bump then it shut


Blower on High Only? This is the Blower (Fan) Motor Resistor. Was that/has been Replaced?
This should be located near the Blower Motor. Follow the wires from the Blower Motor BACK to the Resistor. Change out the Resisitor and before re-assembling back together - Check the operation.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

Jan 20, 2010 | 1997 Ford Explorer AWD

1 Answer

Heater control only works on high


You need a blower motor resistor,and the heater blower motor should be checked for high amp draw. check Napa for the part or go to Dodge..prpbably about 60.00 dollars.

Dec 19, 2008 | 1996 Dodge Caravan

3 Answers

Heating Problem w/2000 Plymouth Breeze.


Sounds exactly like what my mom's car was doing as for the blower only working on high. It was the resistor... I assumed it was the climate controls and replaced them but it didn't change anything then i thought that i must be the blower motor and replaced that too but it turned out to be the resistor which is under the dash on the passenger side of the car.

Nov 10, 2008 | 2000 Plymouth Breeze

1 Answer

Air/Heat only blows on high.


hi check the resistor pack located near the heater motor.this is by passed when heaters set to max so they work.

Oct 14, 2008 | 1998 Ford Mustang

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